Bought two Allen and Heath 120 Meter cables but had nothing but errors with it. Sent one back and got a replacement and that didn't make any difference. QOS errors in the log file, red light at the connector on the GLD. Error every 1-2 minutes got the QOS error. Used a DuraCat cable at 150 FEET - no problemS for the one event we used it at. I cut 120 feet off of the 120 meter A&H cables, redid the shielded Ethercon and NOW HAVE ZERO errors over 5 live events.

So, is the spec'd 120 meters wrong? 3 cables with errors, shorten two of them and they work perfect!

Bought two Allen and Heath 120 Meter cables but had nothing but errors with it. Sent one back and got a replacement and that didn't make any difference. QOS errors in the log file, red light at the connector on the GLD. Error every 1-2 minutes got the QOS error. Used a DuraCat cable at 150 FEET - no problemS for the one event we used it at. I cut 120 feet off of the 120 meter A&H cables, redid the shielded Ethercon and NOW HAVE ZERO errors over 5 live events.

So, is the spec'd 120 meters wrong? 3 cables with errors, shorten two of them and they work perfect!

Did you happen to leave a large portion of it on the spool? My understanding is that if you are not using a great length of the cable that unwinding a portion off of the spool will prevent errors. YMMV.

Its another A&H approved cable, and is a custom order at any length you want. It can come on a reel, but we went for 'air spooled'

Console is used in live applications, and the cable has proved stable so far. We use another AR84 at the console which is connected with the included short Klotz patch cable.

As a bit of a suggestion - we have loomed an XLR loom onto the 100m line with Neutrik genderless XLRs at each end - comes in handy for intercom or various other connections that used to borrow spare snake lines.

Did you happen to leave a large portion of it on the spool? My understanding is that if you are not using a great length of the cable that unwinding a portion off of the spool will prevent errors. YMMV.

I heard that too, but the engineer in me would really challenge that. Anyways, pulled almost all of the cable out - same problem. Shortened the cable (120 feet shorter) and left it all on the spool, NO problem. This is also a sample size of two as far as the fix goes, sample size of 3 spools as far as the errors go.

Everywhere that I read about the physics of Gigabit and cable length - 120 Meters is pushing the design (or by some standards, well beyond the design limits). My scenario validated the "theory" quite well. It is also hard for me to believe that the console or AR's are at fault since it was consistent across an AR2412 and two AR84's plus with just the shortened length, 0 errors.

I heard that too, but the engineer in me would really challenge that. Anyways, pulled almost all of the cable out - same problem. Shortened the cable (120 feet shorter) and left it all on the spool, NO problem. This is also a sample size of two as far as the fix goes, sample size of 3 spools as far as the errors go.

Everywhere that I read about the physics of Gigabit and cable length - 120 Meters is pushing the design (or by some standards, well beyond the design limits). My scenario validated the "theory" quite well. It is also hard for me to believe that the console or AR's are at fault since it was consistent across an AR2412 and two AR84's plus with just the shortened length, 0 errors.

Anyways, we are happy now and have run 6 large events with 0 errors.

Good to hear its working for you now. I didn't want to push the limits so I bought a 300' and a 150' from TMB. I have been extremely apply with them and have never had an error. Only once have I been at the end of be 300' piece. I think it is the pretty much the longest length needed for my business. I use the 150' piece a lot more often.

Running 150' whirlwind cat5 ether snakes 2 are 6 +2 ethercon models and 1 is a12/4/2/150. I just ordered a 200'. I don't think they as shielded. I checked with guys on here to see if anyone had used them bore ordering even though they are not officially supported by A&H. We like them a lot.